<template>
    <div class="register">
        <el-form
            ref="registerRef"
            :model="registerForm"
            :rules="registerRules"
            class="register-form"
        >
            <h3 class="title">FluxAdmin</h3>
            <el-form-item prop="username">
                <el-input
                    v-model="registerForm.username"
                    type="text"
                    size="large"
                    auto-complete="off"
                    placeholder="账号"
                >
                    <template #prefix
                        ><svg-icon
                            icon-class="user"
                            class="el-input__icon input-icon"
                    /></template>
                </el-input>
            </el-form-item>
            <el-form-item prop="password">
                <el-input
                    v-model="registerForm.password"
                    type="password"
                    size="large"
                    auto-complete="off"
                    placeholder="密码"
                    @keyup.enter="handleRegister"
                >
                    <template #prefix
                        ><svg-icon
                            icon-class="password"
                            class="el-input__icon input-icon"
                    /></template>
                </el-input>
            </el-form-item>
            <el-form-item prop="confirmPassword">
                <el-input
                    v-model="registerForm.confirmPassword"
                    type="password"
                    size="large"
                    auto-complete="off"
                    placeholder="确认密码"
                    @keyup.enter="handleRegister"
                >
                    <template #prefix
                        ><svg-icon
                            icon-class="password"
                            class="el-input__icon input-icon"
                    /></template>
                </el-input>
            </el-form-item>
            <el-form-item prop="code" v-if="captchaEnabled">
                <el-input
                    size="large"
                    v-model="registerForm.code"
                    auto-complete="off"
                    placeholder="验证码"
                    style="width: 63%"
                    @keyup.enter="handleRegister"
                >
                    <template #prefix
                        ><svg-icon
                            icon-class="validCode"
                            class="el-input__icon input-icon"
                    /></template>
                </el-input>
                <div class="register-code">
                    <img
                        :src="codeUrl"
                        @click="getCode"
                        class="register-code-img"
                    />
                </div>
            </el-form-item>
            <el-form-item style="width: 100%">
                <el-button
                    :loading="loading"
                    size="large"
                    type="primary"
                    style="width: 100%"
                    @click.prevent="handleRegister"
                >
                    <span v-if="!loading">注 册</span>
                    <span v-else>注 册 中...</span>
                </el-button>
                <div style="float: right">
                    <router-link class="link-type" :to="'/login'"
                        >使用已有账户登录</router-link
                    >
                </div>
            </el-form-item>
        </el-form>
        <!--  底部  -->
        <div class="el-register-footer">
            <span>Copyright © 2024 insistence.tech All Rights Reserved.</span>
        </div>
    </div>
</template>

<script setup>
import { ElMessageBox } from 'element-plus'
import { getCodeImg, register } from '@/api/login'

const router = useRouter()
const { proxy } = getCurrentInstance()

const registerForm = ref({
    username: '',
    password: '',
    confirmPassword: '',
    code: '',
    uuid: ''
})

const equalToPassword = (rule, value, callback) => {
    if (registerForm.value.password !== value) {
        callback(new Error('两次输入的密码不一致'))
    } else {
        callback()
    }
}

const registerRules = {
    username: [
        { required: true, trigger: 'blur', message: '请输入您的账号' },
        {
            min: 2,
            max: 20,
            message: '用户账号长度必须介于 2 和 20 之间',
            trigger: 'blur'
        }
    ],
    password: [
        { required: true, trigger: 'blur', message: '请输入您的密码' },
        {
            min: 5,
            max: 20,
            message: '用户密码长度必须介于 5 和 20 之间',
            trigger: 'blur'
        },
        {
            pattern: /^[^<>"'|\\]+$/,
            message: '不能包含非法字符：< > " \' \\ |',
            trigger: 'blur'
        }
    ],
    confirmPassword: [
        { required: true, trigger: 'blur', message: '请再次输入您的密码' },
        { required: true, validator: equalToPassword, trigger: 'blur' }
    ],
    code: [{ required: true, trigger: 'change', message: '请输入验证码' }]
}

const codeUrl = ref('')
const loading = ref(false)
const captchaEnabled = ref(true)

function handleRegister() {
    proxy.$refs.registerRef.validate((valid) => {
        if (valid) {
            loading.value = true
            register(registerForm.value)
                .then((res) => {
                    const username = registerForm.value.username
                    ElMessageBox.alert(
                        "<font color='red'>恭喜你，您的账号 " +
                            username +
                            ' 注册成功！</font>',
                        '系统提示',
                        {
                            dangerouslyUseHTMLString: true,
                            type: 'success'
                        }
                    )
                        .then(() => {
                            router.push('/login')
                        })
                        .catch(() => {})
                })
                .catch(() => {
                    loading.value = false
                    if (captchaEnabled) {
                        getCode()
                    }
                })
        }
    })
}

function getCode() {
    getCodeImg().then((res) => {
        captchaEnabled.value =
            res.captchaEnabled === undefined ? true : res.captchaEnabled
        if (captchaEnabled.value) {
            codeUrl.value = 'data:image/gif;base64,' + res.img
            registerForm.value.uuid = res.uuid
        }
    })
}

getCode()
</script>

<style lang='scss' scoped>
.register {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background-image: url('../assets/images/login-background.jpg');
    background-size: cover;
}
.title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #707070;
}

.register-form {
    border-radius: 6px;
    background: #ffffff;
    width: 400px;
    padding: 25px 25px 5px 25px;
    .el-input {
        height: 40px;
        input {
            height: 40px;
        }
    }
    .input-icon {
        height: 39px;
        width: 14px;
        margin-left: 0px;
    }
}
.register-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
}
.register-code {
    width: 33%;
    height: 40px;
    float: right;
    img {
        cursor: pointer;
        vertical-align: middle;
    }
}
.el-register-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
}
.register-code-img {
    height: 40px;
    padding-left: 12px;
}
</style>
